package main

import (
	"fmt"
	"time"
)

func main() {
	fmt.Println("start goroutine...")
	go func() {
		time.Sleep(2 * time.Millisecond)
		fmt.Println("running goroutine...")
	}()
	// time.Sleep(3 * time.Millisecond)
	fmt.Println("end...")
}
